i dunno...i haven't played the turbo sngs in a while, but turbo MTTs are ridiculous...
they give you 7min (i think) blinds - it's practically against the odds
to get a good hand and win with it before the break
with normal mtts, unless you get really unlucky and don't see a playable hand before the break, you basicallly are given enough time to get a solid hand. If you are skilled enough to double up with it, then you're fine, because then your skill can basically take you the rest of the way (with stealing blinds etc.).
With turbos, you're either a huge stack, or you're getting blinded away.
That's why you see tournaments on PS called 'deepstacks' - they give you more chips, and way more time (1/2hr blinds) to actually use your skill instead of struggle with quick-rising blinds.
I dunno...this is all based on my personal experiences with turbos, so maybe just ignore me - i've had little success in them